Miles between Boise, ID and St Charles, IL

There are
1,663 mi
from Boise, ID to St Charles, IL

That's the driving distance. It would take 1 day 4 hours to go from Boise, Idaho to St Charles, Illinois.

The flight distance (direct flight from Boise, ID to St Charles, IL) is 1,414.66 mi.

1,663 mi = 1.61 kms